Mitsubishi 3000GT 1991, Service Manual

Page: 765 / 1146

SERVICE. BRAKES
E-6 When diagnosis code “51 VALVE RELAY” is displayed
I
[Explanation]
When the ignition switch is turned ON, the ABS
normal. In addition, normally it monitors whether or
ECU switches the valve relay OFF and ON for an not there is power in the valve power monitor line
initial check, compares the voltage of the signal to since the valve relay is normally ON. If the supply of
the valve relay and valve power monitor line voltage power to the valve power monitor line is
to check whether the valve relay operation is
rupted, this trouble code will be output.
COMBINATION
METER
710 4
2
--- --
3
TSB I
the
When the valve relay is checked,
are the following conditions
found?
No. 85 No. 86:
value 60
No. 87a: Continuity
No. 30 No. 87: No continuity
When batterv
IS
between 86 and
No. 85.
No. 30 No. 87:
No. 30 No. 87a: No
N o
Valve relay
Replace valve relay.
I
N o
With the ignition key “ON”,
does the voltage between the
connector terminal No. 52 and
ground indicate battery voltage?
Yes
Connect the HU harness and
remove the ECU connector.
ground battery voltage.
Replace ABS
vision